Citazione Stile APA (7a Edizione)

Ley, W. (1969). Gas giants: The largest planets. McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Ley, Willy. Gas Giants: The Largest Planets. New York: McGraw-Hill, 1969.

Citatione MLA (9a ed.)

Ley, Willy. Gas Giants: The Largest Planets. McGraw-Hill, 1969.